Public bug reported:
If you make a GPRS connection via Wvdial, with network-manager installed, you
can not access the Internet despite the connection is fully active.
The problem is DNS, but not even making editable / etc / resolv.conf with the
command sudo chattr + i / etc / resolv.conf you can solve the problem.
Example:
$ wvdial
--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ0
ATZ0
OK
--> Sending: ATQ0 V1 E0 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E0 S0=0 &C1 &D2 +FCLASS=0
OK
--> Sending: AT+CGDCONT=1,"ip","internet.wind","",0,0
OK
--> Modem initialized.
--> Sending: ATDT*99***1#
--> Waiting for carrier.
CONNECT
[EMAIL PROTECTED] } [EMAIL PROTECTED]"}&} }*} } g}%~
--> Carrier detected. Waiting for prompt.
[EMAIL PROTECTED] } [EMAIL PROTECTED]"}&} }*} } g}%~
--> PPP negotiation detected.
--> Starting pppd at Fri Aug 29 00:11:15 2008
--> Warning: Could not modify /etc/ppp/pap-secrets: Permission denied
--> --> PAP (Password Authentication Protocol) may be flaky.
--> Warning: Could not modify /etc/ppp/chap-secrets: Permission denied
--> --> CHAP (Challenge Handshake) may be flaky.
--> Pid of pppd: 7826
--> Using interface ppp0
--> pppd: [08]�[06][08]x�[06][08]8�[06][08]
--> pppd: [08]�[06][08]x�[06][08]8�[06][08]
--> pppd: [08]�[06][08]x�[06][08]8�[06][08]
--> pppd: [08]�[06][08]x�[06][08]8�[06][08]
--> local IP address 151.80.1.63
--> pppd: [08]�[06][08]x�[06][08]8�[06][08]
--> remote IP address 10.6.6.6
--> pppd: [08]�[06][08]x�[06][08]8�[06][08]
--> primary DNS address 193.70.152.25
--> pppd: [08]�[06][08]x�[06][08]8�[06][08]
--> secondary DNS address 193.70.192.25
--> pppd: [08]�[06][08]x�[06][08]8�[06][08]
$ ifconfig
ppp0 Link encap:Point-to-Point Protocol
inet addr:151.80.71.24 P-t-P:10.6.6.6 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:715 (715.0 B) TX bytes:97 (97.0 B)
$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.6.6.6 * 255.255.255.255 UH 0 0 0 ppp0
192.168.10.0 * 255.255.255.0 U 0 0 0 wlan0
link-local * 255.255.0.0 U 1000 0 0 wlan0
default * 0.0.0.0 U 0 0 0 ppp0
$ ping -c 4 208.67.220.220
PING 208.67.220.220 (208.67.220.220) 56(84) bytes of data.
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
--- 208.67.220.220 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3008ms
For the moment I solved the problem by replacing network-manager with wicd.
** Affects: ubuntu
Importance: Undecided
Status: New
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Not correctly handle the DNS ppp interface with GPRS connection
https://bugs.launchpad.net/bugs/262976
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